Staff Site Reliability Engineer

Circle Internet Management Services LLC; California; On-site; USD 195,000 - 258,000; Full time

Job summary

Circle is seeking a Staff Site Reliability Engineer to design, build, and operate the infrastructure powering our blockchain platform at scale. You will own reliability, performance, and automation across public clouds, collaborating with engineering, security, and product teams to deliver resilient services.

Ideal candidates have 6+ years in SRE/DevOps, strong Kubernetes expertise, Terraform or Pulumi, and experience with blockchain nodes; you will mentor engineers and help advance platform

Qualifications

• 4+ years of experience in Site Reliability Engineering, DevOps, or Infrastructure Engineering, ideally supporting cloud-native platforms.
• Experience operating and troubleshooting blockchain nodes and other distributed systems in production environments.
• Strong experience with Kubernetes, including Helm, RBAC, operators, controllers, and observability tooling.

Responsibilities

• Operate and scale production blockchain infrastructure, managing full nodes across networks such as Arc, Ethereum, Solana, Base, and other supported protocols.
• Design, build, and maintain highly available, secure Kubernetes platforms with a focus on automation, resilience, and self-healing workloads.
• Build and improve CI/CD pipelines, deployment workflows, and Infrastructure as Code using Terraform, Pulumi, and cloud-native tooling.
• Develop AI-powered infrastructure automation, including Kubernetes lifecycle management, IaC analysis, blockchain cost optimization, and MCP server integrations to improve engineering productivity.
• Monitor, troubleshoot, and optimize distributed systems, participating in a follow-the-sun on-call rotation, incident response, and post-incident reviews to improve platform reliability.
• Partner closely with protocol, product, and security teams to deliver reliable infrastructure that supports network launches, upgrades, and evolving business requirements.
• Drive technical excellence by mentoring engineers, sharing SRE best practices, and contributing to architecture and reliability improvements across the platform.

Skills

Kubernetes

Go

Python

SRE

Cloud platforms

Tools

Terraform

Pulumi

Helm

RBAC

CI/CD tooling

Job description

Circle (NYSE: CRCL) is one of the world’s leading internet financial platform companies, building the foundation of a more open, global economy through digital assets, payment applications, and programmable blockchain infrastructure. Circle’s platform includes the world’s largest regulated stablecoin network anchored by USDC, Circle Payments Network for global money movement, and Arc, an enterprise-grade blockchain designed to become the Economic OS for the internet. Enterprises, financial institutions, and developers use Circle to power trusted, internet-scale financial innovation. Learn more at circle.com.

What you’ll be part of:

Circle is committed to visibility and stability in everything we do. As we grow as an organization, we're expanding into some of the world's strongest jurisdictions. Speed and efficiency are motivators for our success and our employees live by our company values: High Integrity, Future Forward, Multistakeholder, Mindful, and Driven by Excellence. We have built a flexible work environment where new ideas are encouraged and everyone is a stakeholder.

What you’ll be responsible for:

As a Staff Site Reliability Engineer on Circle’s Platform team, you’ll design, build, and operate the infrastructure that powers our blockchain platform at scale.

You’ll own the reliability, performance, and automation of distributed blockchain systems across multiple public cloud environments, leveraging Kubernetes, Infrastructure as Code, and modern SRE practices to deliver resilient, secure, and highly available services. Working closely with engineering, protocol, product, and security teams, you’ll build AI-powered tooling and automation that improves operational excellence, accelerates developer productivity, and enables the rapid delivery of new blockchain capabilities. This role is ideal for an engineer who thrives in high-ownership environments, enjoys solving complex distributed systems challenges, and is passionate about advancing the reliability and scalability of blockchain infrastructure.

What you'll work on:

Operate and scale production blockchain infrastructure, managing full nodes across networks such as Arc, Ethereum, Solana, Base, and other supported protocols.

Design, build, and maintain highly available, secure Kubernetes platforms with a focus on automation, resilience, and self-healing workloads.

Build and improve CI/CD pipelines, deployment workflows, and Infrastructure as Code using Terraform, Pulumi, and cloud-native tooling.

Develop AI-powered infrastructure automation, including Kubernetes lifecycle management, IaC analysis, blockchain cost optimization, and MCP server integrations to improve engineering productivity.

Monitor, troubleshoot, and optimize distributed systems, participating in a follow-the-sun on-call rotation, incident response, and post-incident reviews to improve platform reliability.

Partner closely with protocol, product, and security teams to deliver reliable infrastructure that supports network launches, upgrades, and evolving business requirements.

Drive technical excellence by mentoring engineers, sharing SRE best practices, and contributing to architecture and reliability improvements across the platform.

Team hierarchy for individual contributors:

• Staff Site Reliability Engineer (IV)
• Senior Site Reliability Engineer (III)

What you’ll bring to Circle (not all required):

• Senior Site Reliability Engineer (III)
• 4+ years of experience in Site Reliability Engineering, DevOps, or Infrastructure Engineering, ideally supporting cloud-native platforms.
• Experience operating and troubleshooting blockchain nodes and other distributed systems in production environments.
• Strong experience with Kubernetes, including Helm, RBAC, operators, controllers, and observability tooling.
• Hands-on experience building CI/CD pipelines, containerized workloads, and modern deployment strategies such as blue-green and canary releases.
• Proficiency with Infrastructure as Code using Terraform or Pulumi and cloud networking fundamentals, including VPCs, DNS, load balancers, and secure connectivity.
• Proficiency in Go or Python to build platform automation, infrastructure tooling, and operational workflows.
• Experience managing SQL databases and stateful production services with a strong understanding of reliability and performance.
• Demonstrated ability to lead cross-functional technical initiatives, make sound decisions in ambiguous situations, and communicate effectively across engineering teams.

Preferred Requirements:

• Passion for crypto and blockchain infrastructure, with experience building AI-enabled infrastructure tooling or agentic workflows; familiarity with MCP servers and responsible use of generative AI to improve engineering productivity is a plus.

Staff Site Reliability Engineer (IV) All the requirements of a Senior Site Reliability Engineer and:

• 6+ years of experience in SRE, DevOps, or Infrastructure Engineering, ideally within a cloud-native or blockchain environment; Proven track record of technical leadership in complex, distributed systems architecture and design.
• Deep expertise in: Blockchain protocols and their infrastructure demands, Kubernetes internals and tuning for large-scale workloads.
• Agentic automation strategies and applying AI tooling in real-world engineering workflows.
• Observability and chaos engineering techniques to stress-test reliability.
• Experience mentoring engineers and scaling SRE best practices across teams.
• Strong engineering judgment with a passion for code quality, automated testing, and operational excellence.

Compensation

• Base Pay Range: $195,000 - $257,500

Mission

Circle is on a mission to create an inclusive financial future, with transparency at our core. We consider a wide variety of elements when crafting our compensation ranges and total compensation packages. Starting pay is determined by various factors, including but not limited to: relevant experience, skill set, qualifications, and other business and organizational needs. Please note that compensation ranges may differ for candidates in other locations.

Equal Opportunity & Diversity

We are an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status, or any other protected status required by the laws in the locations where we hire. Additionally, Circle participates in the E-Verify Program in certain locations, as required by law.

Should you require accommodations or assistance in our interview process because of a disability, please reach out to [e-mail] for support.

Circle’s Mission & Values

Circle believes in a future where digital dollars work securely around the world to create a more prosperous global economy for everyone. To accomplish this, we created USDC, a digital currency backed by the US dollar and always redeemable 1:1. We work closely with regulators to ensure our digital dollar guides and surpasses the standards for stablecoins. By doing this, USDC has the potential to change how money moves around the world. Our values of Multistakeholder, Mindful, Driven by excellence, and High integrity drive us to succeed. Valuing our employees as stakeholders is about creating an environment where people can thrive and grow, be challenged and learn constantly – an environment that thrives on diversity by drawing competitive strength from within. Employees take pride in Circle’s culture and values. That’s why community members from around the world say we’re a top place to work.